1. Before refilling a butane torch lighter, it is necessary to drain any remaining fuel from the lighter. Using the small screwdriver press the fuel-refilling nozzle to remove the leftover fuel.
2. Turn the flame adjustment screw clockwise until it stops to turn off the fuel flow before refueling.
3. Point the fuel nozzle up and push the container of fuel into the lighter. Turn the fuel nozzle down and wait while the lighter refills. It is important not to pump the fuel can into the lighter while refueling because this may cause the fuel tank to burst.
4. Once the lighter is refilled, allow it to rest until the fuel becomes room temperature. Butane fuel is cold while refilling. It will expand as it gets to room temperature.
5. Turn the flame adjustment screw back 1/2 turn counter clockwise. Attempt to light the lighter. If the lighter won't light, turn the adjustment screw another 1/4 turn and try again. Keep adjusting the screw in 1/4 turns until the lighter lights.